Casualty: Déjà vu

Stabbing victim Nikki recovers and returns to work, but it soon becomes clear she remains haunted by the ordeal. Harry has to put family troubles to one side when a parachutist collides with a bungee-jumper at a local fair, leading to a full-scale emergency, and the future looks bleak for Lara, who risks being found guilty of manslaughter should David's wife fail to testify in her favour